Which direction do people look when they speak, and which direction is telling the truth?

You can't say for sure. It's possible that he rolled his eyes to avoid you. It is also possible that he has this habit, or that she is absent-minded when looking at things. It is difficult to judge that she may be lying. If his eyes move quickly, it is possible that he is lying.

The eyes are the windows of the soul, and people's feelings are easily revealed in the eyes. So, as long as we pay attention to each other when thinking and which direction our eyes turn, we can know each other's personality unconsciously:

When thinking, people who turn their eyes to the upper right will see imaginary things in their minds, which shows that such people actually like daydreaming. However, this does not mean that they can only imagine things out of thin air. Many inventions begin with imagination! Another specialty of such people lies in logical analysis. As long as they analyze their imagination logically, it is possible to invent some amazing products!

People who turn their eyes down to the right when thinking are meticulous and have strong thinking ability. Be especially careful when dealing with such people, because they are suspicious and often think they are detectives. As long as there is a little clue, they will think of many things. Moreover, this kind of person has a narrow mouth, so don't have money with this kind of person, or you will get yourself into the biggest trouble.

PS； But if the other person doesn't turn down every time he thinks, but only occasionally, then he is probably lying, and what he said at this time is probably unreliable.

People who turn their eyes to the upper left when thinking often like to recall and think about the past, so you should be patient with such people. But they are all talkative people, and there are many friends who eat, drink and be merry around them, but few people really talk to each other. So this kind of person wants the sincere care of others most. To win the trust of such people, you have to pay a little sincerity, but flattery is not enough.

People who turn their eyes to the lower left when thinking have strong imagination and thinking ability, and are good materials for writers or screenwriters. What they like best is listening to music and enjoying life freely. This kind of person may give people the feeling of being lazy, but it is only an illusion. In fact, such people know how to arrange their own lives better than anyone else. Don't give them a sense of oppression when getting along with such people, otherwise it will only scare them, keep them at a distance from you, and it will be difficult to gain their trust in the future.